Science, 159(3810): 56-63, January 5, 1968 . The Matthew Effect m Science 0 The reward and communication systems of science are considered. Robert K. Mcrton ,\ This paper develops a conception of ways in which certain psychosociai \ ., processes affect the allocation of rewards to scientists for their contribu\ tjons- an allocation which in turn affwts the flow of ideas and findings th&gh the communication networks of s&,nce. The conception is based upon ah, analysis of the compotite of experienc; ,,reported in Harriet Zuckerman’s intemiews with Nobel laureates in the United @ates (1) and upon data drawn from the diaries, letters, notebooks. scientific &pen, and biographies of other scientists. image and the pubiic image of scientists arc iargeiy shaped by the cornmunaily validating testimony of sign& cant others that they have variously lived up to the exacting institutional requirements of their roies. A number of workers, in empiricai studies, have investigated various aspects of the reward system of science as thus conceived. Gtaser (3) has found. for example, that some degree of rcco&ion is required to stabiiizc the careen of scientists. In a case study Crane (4) used the quantity of publication (apart from quality) as a measure of scientific productivity and found that highly productive scientists at a major The Reward System and bceaparats university gained recognition more ofof the Forty-First chair” ten than equally productive scientists ’ ‘at a lesser university. Hagstrom (5) has We might best begin with s&me gendeveloped and partly tested the hypotherai observations on the reward system esis that matcriai rewards in science in science, basing these on eariier ibexfunction primarily to reinforce the opreticai formulations and empirical ‘ineration of a reward system in which vestigations. Some time ago (2) it wad the primary reward of recognition for noted that graded rewards in the realm ” , scientific contributions is exchanged for of science arc distributed principally in +cess to scientific information. Storer the coin of recognition accorded re(6) ,has analyzed the ambivalence of search by feUow-scientists. This recogthe @cntist’s response to recognition nition is stratified for varying grades “as a qase in which the norm of disOf scientific accompiishment, as judged intereste+ss operates to make scienhv. the scientist’s peen. Both the selftists deny‘ ,thc vaiue to them of influence and kvthority in science.” ZuckThe author is Giddings Professor of Sociology at Columbia University, IJew York 10027. Thi8 erman (7) and S,he Coics (8) have found article is brKd on a papw read before the that scientists ~$0 receive recognition Amctican Sociolo@icrJ Association in San Francisco. August 1967. for research done early in their ca- rcers are more productive later on fhnn those who do not. And the Cola &WC ato found that. at least in the B of contemporary American phys& the reward system operates iargciy in a* cord with institutional valua of the s&linasmuch as quality of d, is more often and more su-9 rewarded than mere quantity. ** In science as in other ins&u&d f&n& a special problem in &8 w&inlp of the reward system tums up when individuals or organizations take on the job of gauging and suitably mVaKiing lofty performance on behalf of a large community. TIiw M uitim accolade in ZOth*eattay sciatc& the Nobel prize, is often- asshed to mark off its recipients from ail the other scbtists of the time. Yet. tbis assumption is at odds with the- wellknown fact that a good number of scientists who have not recdved the prize and wiil not receive it ham contributed as much to the advrrrrccnrtnl of science as some of the iedpients. or more. This can be desctibed a the phenomenon of “the 4lst ChaiP The derivation of this tag is citar enough. The French Academy, it M be rcmembered. decided early that oniy a cohort of 40 couid qualify as m-0 hen and so emerge as immo& This limitation of numbers ma& inevitable, of course, the exciusi6n through the centuries of many talented individrrallr who have won their own immortality. The familiar list of occupants Of this 41st chair inciudes Descartes, Pd. Moli&rt, Bayle, Rousseau, Saint&non, Didcrot, Stendahl, FIaubert, 204 and Proust (9). What holds for the French Academy holds in varying degree for every bther institution designed to identify and reward talent. i’n all of them there arc occupants of the 4lst chair, mea outside the Academy having at least the same order of talent as those inside it. In part, this circumstance results from emrs of judgment that lead to inclusion of the less talented at the expense of the more talented. History serves 1 Copyright @ 1968 by the Amencan Association for the Advancement of Science Reprinted from SCIENCE Januuy 5, 1968. Vol. 159, No. 3810. pages 56-63 Y . $. as an appellate court, ready to reverse Jacques Loeb, W. M. Bayiiss, E. H. the judgments of the lower courts, Starling, G. N. Lewis, 0. T. Avery, which are limited by the myopia of and Selig Hecht, to say nothing of the long list of still-living uncrowned Nobel contemporaneity. But in greater part, laureates (IO). the phenomenon of the 41st chair is In the stratification system of honor an artifact of having a fixed number in science, there may also be a “ratchet of places available at the summit of effect” (II) operating in the careers recognition. Moreover, when a particular generation is rich in achievements of scientists such that, once having achieved a particular degree of emi-’ of a high order, it follows from the rule of fixed numbers that some men nence, they do not later fall much below that level (although they .may be whose accomplishments rank as high as those actually given the award will outdistanced by newcomers and so sufbe excluded from the honorific ranks. ’ fer a relarive decline in prestige). Once a Nobel laureate, always a Nobel lauIndeed, their accomplishments somereate. Yet the reward system based on times far outrank those which, in a time recognition for work accomplished tends of less creativity, proved enough to to induce continued effort, which serves qualify men for .&is high order of both to validate the judgment that the rccognitioa scientist has’ unusual capacities and to The Nobel prize retains its luster betestify that these capacities have concause errors of the first kind-where tinuing potential. What appears from scientic work of dubious or inferior below to be the summit becomes, in worth has been mistakenly honored the experience -are uncommonly few. Yet limitations of those who have reached it, only another way station. of the second kind cannot be avoided. The scientist’s ,peers and other ass00 The small number of awards means ciates regard each of his scientific that, particularly in times of great achievements as only the prelude to scientific advance, there will be many new and greater achievements. Such sooccupants of the 41st chair (and, since cial pressures do not often permit those the terms governing the award of the who have climbed the rugged mouno prize do not provide for Posthumous tains of scientific achievement to rerecognition, permanent occupants of main content. It is not necessarily the that chair). This gap in the award of fact that their own Faustian aspirations the ultimate prize is only partly filfed are ever escalating that keeps eminent by other awards for scientific accomscientists at work More and more is plishrnent since these do not carry the same prestige either inside the scientific expected of them, and this creates its community or outside it. Furthermore, own measure of motivation and stress. Less often than might be imagined is i*what has been noted about the artifact there repose at the top in science of fixed numbers producing occupants of the 41st chair in the case of the (see 12). The recognition accorded scientific Nobei prize holds in principle for other achievement by the scientist’s peers is awards providing less prestige (though a reward in the strict sense identified sometimes, nowadays, more cash). by Parsons (13). As we shall see, such Scientists reflecting on the stratificarecognition can be converted into an tion of honor and esteem in the world instrumental asset as enlarged facilities o&&&e know all this; the Nobel are made available to the honored scien*‘laureates themselves know and emphatist for further work. Without deiibersize it, and the members of the Swcdish Royal Academy of Science and the ate intent on the part of any group. the reward system thus influences the Royal Caroline Institute who face the “class structure” of science by providunenviable task of making the tial ing a stratied distribution of chances, decisions know it. The latter testify to the phenomenon of the 41st chair among scientists, for enlarging their whenever they allude to work of “prizerole as investigators. The process provides differential access to the means winning calibre” which, under the conditions of+ the scarcity of prizes, could of scientific production. This becomes not be given the award. And so it is alf the more important in the current *historical shift from little science to big that, in the case of the Nobel prize, occupants of the 41st chair comprise an science, with its expensive and often illustrious company that includes such centralized equipment needed for renames as Josiah Willard Gibbs, Mendesearch. There is thus a continuing interplay between the status system, based Ieev, W. B. Cannon, H. Quincke, J. Barcroft, F. d’H&elle, H. De Vries, on honor and esteem, and the class 2 system, based . on differential iifechances, which locates scientists in differing positions within the opportunity structure of science (14). The Matthew Effectin the RewardSystem The social structure of science provides the context for this inquiry into a complex psychosocial process that affects both the reward system and the communication system of science. We start by noting a. theme that runs through the interviews with the Nobel laureates. They repeatedly observe that eminent scientists get dispmportionately great credit for their contributions to science while reiativeiy unknown scientists tend to get disproportionately little credit for comparable contributions. As one laureate in physics put it (25): “The world is peculiar in this matter of how it gives credit. It tends to give the credit to [already] famous people? As we examine the experiences reported by eminent scientists we find that this pattern of recognition, skewed in favor of the established scientist, appears principally (i) in cases of co10 laboration and (ii) in cases of independcnt multiple discoveries made by scientists of distinctly different rank (Ia) 1; papers coauthored by men of decidedly unequal reputation, another laureate in physics reports, “the man who’s best known gets more credit, an inordinate amount of CrcdW In the words of a laureate in chemistry: “When people see my name on a paper, they are apt to remember it and not to remember the other names.” And -‘a laureate in physiology and medicine describes his awn pattern of response to jointly authored-papers. , You usually notice the name that you’re familiar with. Even if it’s fast. it wilf be the one that sticks. In some cases, all the names are unfamiliar to you, and they’re virtually anonymous. But what you note is the acknowledgement at the end of the paper to the senior person for his “advice and encouragement.” So you wiil say: “This came out of Greene’s lab, or se and-so’s lab.” You remember that, rather than the long list of authors, Almost as though he had been listening to this . account, another laureate in medicine explains why he will often not put his name on the published report of a collaborative piece of work: “People are more or less tempted to . say: ‘Oh yes, so-and-so is working on such-and-such in C’s laboratory. It’s C’s idea.’ I try to cut that down.” Still another laureate in medicine alludes to this pattern and goes on to observe how it might prejudice the career of the junior investigator: If someone is being conside=d for a job by people who have not had much experience with him, if he hw published only together with some known name+ weii, it detracts. It naturally makes people ask: “How much is really his own contribution. how much [the senior author’s]. How will he work out once he goes out of that laboratory?” . Under certain conditions this adverse effect on recognition of the junior author of papers written in collaboration with prominent scientists can apparent.- ly be countered and even converted into an asset. Shouid the younger scientist .move ahead to do autonomous and significant work, this work rerroactivciy affects the appraisals of his role in earlier collaboration. In the words of the laureate in medicine who referred to the virtual anonymity of junior authors of coauthored papets: “People who have been identified with such joint work and who then go on to do good work later on, [do] get the -proper amount of recognition.” Indeed, as another laureate implies, this retroactive judgment may actuaily heighten recognition for later accomplishments: “The junior person is sometimes iost sight of, but only temporariiy if he continues. In many cases, he actually gains in acceptance of his work and in generai acceptance, by having once had such association.” Awareness of this pattern of retroactive recognition may account in part for the preference. described by another laureate of some “young feilows [,who] feel that to have a betterknown name on the paper wiil be of help to them.” But this is an expressive as weii as a merely instrumental preference, as we see also in the pride with which laureates themselves speak of having worked, say, with Fermi, G. N. Lewis, Meycrhof, or Niels Bohr. So much for the misallocation of credit in this reward system in the case of collaborative work. Such misaiiocation also occurs in the case of independent multiple discoveries. When approximately the same ideas or findings are independently communicated by a scientist of great repute and by one not yet widely known, it is the first, we are told, who ordinarily receives prime recognition. An approximation . to this pattern is reported reate who observes: by a iau- It does happen that two men have the same idea and one becomes better known for it. F-+ who had the idea, went circling round to try to get an experiment for. . . Nobody wouid do it and so it was forgotten, practically. Finally, L and c‘,, did it, became famous. and Band got the Nobel Prize. . . . If things had gone just a little differently; if somcbody had been willing to try the txpcriment when E suggested it, they probably couid have published it jointly and he would have &en a famous man. As it is, he’s a footnote. l The workings of this process at the expense of the young scientist and to the benefit of the famous one is remarkably summarized in the life history of a laureate in physics, who has experienced both phases at diRerent times in his career. When you’re not recognized, he recalls, it’s a little bit irritating to have somebody come along and figure out the obvious which you’ve also figured out, and everybody gives him credit just because he’s a famous physicist or a famous man in his field. Here he is viewing the case he reof one who had this happen to him before he had become famous. The conversation takes a new turn as he notes that his own position has greatly changed. Shifting from the perspective of his earlier days, when he felt victimized by the pattern. to the perspective of his present high status, he goes on to say: ports from the perspective This often happens, and I’m probably getting credit now, if I don’t watch myself, for things other people figured out. Because I’m notorious and when I say it, people say: “Well, he’s the one that thought this out.” Well. I may just be saying things that other people have thought out before. In the end, then, a sort of rough-hewn justice has been done by the compounding of two compensating injustices. His earlier ~accomplishments have been underestimated; his later ones, overestimated (I 7). This complex pattern of the misaiiocation of credit for scientific work must quite evidently be described as “the Matthew effect,” for, as will be remembered, the Gospel According to St. Matthew puts it this way: For unto every one that hath shall be given, and he shail have abundance: but from him that hath not shall be taken away even that which he hath. Put in less stately language, the Mat3 thew effect consists in the accruing of greater increments of recognition for particuiar scientific contributions to scientists of considerable repute and the withholding of such recognition from scientists who have not yet made their mark. Nobel laureates provide presumptive evidence of the effect. since they testify to its occurrence, not as victims -which might make their testimony suspect-but as unwitting beneficiaries. The laureates and other eminent men of science are sufficiently aware of this aspect of the Matthew effect to make apeciai efforts to counteract it. At the extreme, they sometimes rcfuse to coauthor a paper reporting rem search on which they have coilabootcd in order not to diminish the-.ra%gnition accorded their less-well-known associates. An& as Harriet Zuckcrman has found (28), they tend to give fint place in jointly authored papers to one of their collaborators. She discovered, moreover, that the iaureates who have attained eminence before receiving the Nobei prize begin to transfer fintauthorship to associates earlier than less eminent laureates-to-be do, and that both sets of laureate-he previousiy eminent and not-so-eminentgreatly increase this practice a@r receiving the prize. Yet the latter effort is probably more expressive of the laureates’ good intentions than it is &cctive in redressing the imbalance of credit attributable to the Matthew effect. As the laureate quoted by Harriet Zuckerman acknowledges: “If I publish my name first, then everyone thinks the others are just technicians. . . . If my name is last, people will credit me anyway for the whole thing, so I want the others to have a bit more glory.” The problem of achieving a public identity in science may be deepened by the great increase in the number of papers with several authors (2, chap. 3; 19; 20, p. 87) in which the -role of young collaborators becomes obscured by the brilliance that surrounds their illustrious co-authors. So great is this problem that we are tempted to turn again to the Scriptures to designate the status-enhancement and status-suppression components of the Matthew effect. We can describe it as “the Ecclesiasticus component,” from the famil“Let us now praise faiar injunction book mous men,” in the noncanonical of that name. It will surely have been noted that the laureates perceive the Matthew tf- . feet primarily as a problem in the just allocation of credit for scientific accomplishment. They see it largely in terms of its action in enhancing rank or suppressing recognition. They see it as leading to an unintended double injustice, in which unknown scientists are unjustifiably victimized and famous ones, unjustifiably benefited. In short, they see the Matthew effect in terms of a basic inequity in the reward system that affects the careers of individual scientists. But it has other implications for the development of science, and we must shift our angle of theoreticai vision in order to identify them. and intensity with the exponential increase (20, chaps. 1 and 2; 26) in the volume of scientific publications, which makes it increasingly difficult for scientists to keep UP with work in their field. Bentley Glass (27) is only one among many to conciude that “perStudies gf the reading practices of haps no problem facing the individual scientists indicate that the suggested scientist today is more defeating than possibility-“Nobody reads it”“is the effort to cope with the flood of something less than sheer hyperbole. It published scientific research, even with= has been found, for example, that oniy in one’s own narrow specialty.” Studabout half of 1 percent of the articles ies of the communication behavior of published in journals of chemistry are scientists (28) have shown that, conread by any one chemist (22). And fronted with the growing task of idea& much the same pattern has been found fying significant work pubiished in their to hold in psychology (23, p. 9): field, scientists search for cues to what they should attend to. One such a js’ The data on current readership (i.e., within the professional reputation 6f the” aua couple [of] months after distribution of The Matthew Effect the journal) suggested that about one-half thors. The problem of locating the perof the research reports in “co&* joumais tinent research literature and the prob, in the Commtutication System wiil be read [or skimmed) by 1% or less lem of authors’ wanting their work to of a random sample of psychologists. At We now look at the same social be noticed and used are symmetricai: the highest end of the current readership distribution, no research report is likeiy to phenomena from another perspectivethe vastly increased bulk of publicabe read by more than about 7% of such not from the standpoint of individual tion stiffens the competition he-n a safnpie. careers and the workings of the repapers for such notice. The American ward system but from the standpoint Psychological Association study (23, Several of the Coles’s findings (24) of science conceived of as a system pp. 252, 254; 29) found that from 15 to bear tangentially on the hypothesis of communication. This perspective 23 percent of the psychologist-readers’ about the communication function of yields a further set of inferences. It behaviors in selecting articles were the Matthew effect. The evidence is leads us to propose the hypothesis that based on &he identity of the authors. tangential rather than centrai to the a scientific contribution will have greatThe workings of the Matthew eflect hypothesis since their data deal with er visibiIity in the community of scienin the communication system require the degree of visibility of the entrre tists when it is introduced by a scienus to draw out and emphasize certain corpus of each physicist’s work in the tist of high rank than when it is introimplications about the character of scinational community of physicists rather duced by one who has not yet made ence. They remind us that science is than with the visibility of particular his mark. In other words, considered not composed of a series of priv>te papers within it. Still, in gross terms, in its implications for the reward sysexperiences of discovery by many. S& their findings are at least consistent with tem, the Matthew effect is dysfunctionentists, as sometimes seems to be asthe hypothesis. The h&her the rank _ al for the careers of individual sciensumed in inquiries centered exclusively of physicists (as measured by the prestists who are penaiized in the early on the psychological processes involved tige of the awards they have received stages of their development, but conin discovery. Science is public, not for scientific work), the higher their sidered in its implications for the comprivate. True, the making of a disvisibility in the national community munication system, the Matthew effect. covery is a complex personal experi=+ of physicists. Nobel Iaureates have a in cases of collaboration and multiple ence. And since the making of the disvisibility score (25) of 85; other memdiscoveries, may operate to heighten covery necessarily precedes its fate, the bers of the National Academy of Scithe visibility of new scientific communature of the experience is the same ences, a score of 72; recipients of nications. This is not the first instance whether the discovery temporarily fails awards *having less prestige, a score of a social pattern’s being functional to become part of the socially shared of 38; and physicists who have refor certain *aspects of a social system culture of science or quickly becomes ceived no awards, a visibility score of and dysfunctional for certain individa functionally significant part Of that 17. The Coles also find (24) that the uals within that system. That, indeed, culture. But, for science to be advisibility of physicists producing work is a principal theme of classical vanced, it is not enough that fnribful of high quality is heightened by their tragedy (21). ideas be originated or new experiments attaining honorific awards more presSeveral laureates have sensed this sodeveloped or new problems formulated tigious than those they have previouscial function of the Matthew effect, or new methods instituted. The innovaly received. Further investigation is Speaking of the diiemma that contions must be effectively communicated needed to discover whether these same fronts the famous man of science who to others. That, after all, is what we patterns hold for differences in the visdirects the work of a junior associate, mean by a contribution to scienceibility (as measured by readership) of one of them observes: wmething given to the common fund individual papers published by s&nof knowledge. In the end, then, science tists of differing rank. It raises the question of what you are to is a socially shared and socially vaiiThere is reason to assume that the , do. You have a studentt shouid you put dated body of knowledge. For the de= communication function of the Matyour name on that paper or not? You’ve velopment of science, only work that thew effect is increasing in frequency contributed to it, but is it better that you shouldn’t or should? There are two sides to it. If you don’t [and here comes the decisive point on visibility], if you don’t, there’s the possibility that the paper may go quite unrecognized. Nobody reads it. If you do, it might be recognized, but then the student doesn’t get enough credit. js effectiveiy perceived and utilized by other scientists, then and there, matters. In investigating the processes that shape the development of science, it is therefore important to consider the social mechanisms that curb or facilitate the incorporation of would-be contributions into the domain of science. Looking at the Matthew effect from this perspective, we have noted the distinct possibility that contributions made by scientists of considerable standing are the most likely to enter promptly and widely into the communication networks df science, and so to accelerate its development. . The Matthew Effect and the Functions of Redundancy Construed in this way, the Matthew effect links up with my previous studies of the functions of redundancy in science (30). When similar discoveries are made by two or more scientists working independently (“multiple discoveries”), the probability that they will be promply incorporated into the current body of scientific knowledge is increased. The more often .a discovery has been made independently, the better are its prospects of being identified and used. If one published version of the discovery is obscured by “noise” in the communication system of science, then another vemion may become visible. This leaves us with an unresolved question: How can one estimate what amount of redundancy in independent efforts to solve a scientific problem wiil give maximum probability of solution without entailing so much replication of effort that the last increments wiil not appreciably increase the probability? (See 31.) In examining the functions of the Matthew effect for communication in science. we can now refine this conception further. It is not only the number of times a discovery has been independently made and published that affects its visibility but also the standing, within the stratification system of science, of the scientists who have made it. To put the matter with undue simplicity, a single discovery introduced by a scientist of established reputation may have as good a chance of achieving high visibility as a multiple discovery variously introduced by several scientists no one of whom has yet achieved a substantial reputation. Although the general idea is, at this writing, tentative, it does have the not inconsiderable man of science serves distinctive functions. It makes a diEerence, and.aftcrr a decisive difference, for the advancement of science whether a composite of ideas and findings is heavily concentrated in the work of one man or one research group or is thinly dispersed among a great number of m and organizations. Such a wmposi~ tends to take on a structure sooner in the first instance than in the second. It required Al Freud, for instanto focus the attention of many psychoi+ gisti upon a tide array of idela which, as has been shown elsewhere (30), had in large part also been hit upon by various other scientists. Such focJidna may turn out to be a distinctiVe*fUSiCtian of eminent men of science (36. _ A Freud, a Fermi, and a Q&r& play a charismatic role in t SC&U They excite intelIectual en&&am among others who ascribe cm q&i& to them. Not only do thw themselves achieve excellence, they brvr, the capacity for evoking exccllEnm in othen. In the compelling phrase of W laureate, they provide a “bright am& ancc.” It Is not so much tha8 thr-rr great men of science pass on’their te& niqum methods, information, and theory to novices working with thsoa, More consequentially, they cm to their associates the norms and vahaes that govern significant research. oiben in their later years, or after their dti this personal influence becomes e ized, in the fashion described by Mm Weber for other fields of hm a&~ity. Charisma becomes institutionriized, in the form of schools of thought and research establishments. The role of outstanding men of sciencc in influencing younger as34ktes is repeatedly emphasized in the in-views with laureates. Almost to a m they lay great emphasis on the importance of problem-finding, not onfy prob, lem-solving. They uniformly exprus the that what rm@tcrs stmng conviction most in their work is a d-g sense of taste, of judgment, in tig upon problems that *areof fundamtntai importance. And, typically, they rcpart that they acquired this sense f the significant problem during their yof training in evocative environmmts. Reflecting on his years as a novice in the laboratory of a chemist of the first Social and Psychologicai Bases rank, one laureate reports that he “led me to look for important things, whenof the Matthew Ukct ever possible, rather th& to work on Even when some of his contributions endless detail or to work just to imhave been independently made by an prove accuracy rather than malting a aggregate of other scientists, the great basic new contribution.” Another de- virtue of lending itself to approximate citation indexes to find whether in multiple discoveries by scientists of markedly unequal rank it is indeed the case that work published by the scientists of higher rank is the more promptly and more widely cited (32). To the extent that it is, the findings will shed some light on the unplanned consequences of the strat@ation system for the development of science. Interviews with working scientists about their reading practices can also supply data bearing on the hypothesis. So much for the link between the Matthew effect and the functions of multiple discoveries in increasing both the probability and the speed of diffusion of significant new contributions to - science. The Matthew effect aIs0 links up with the finding, reported clsewhere (33). that great talents in science are .typicaily involved in many multiple discoveries. This statement holds for Galileo and Newton: for Faraday and CIerk Maxwell; for Hooke, Cavendish, and Stensen: for Gauss and Laplace; for Lavoisier, Priestley, and Scheele: and for most Nobel laureates. It holds, in short, for all those whose place in the pantheon of science is largely assured. however much they may differ in the scale of their total accomplishment. The greatness of these scientists rests in their having individually contributed a body of ideas, methods, and results which, in the case of multiple discoveries, has also been contributed by a sizable aggregate of lem talented men. For example, we have found that Kelvin had a part in 32 or more multiple discoveries, and that it took 30 other men to contribute what Kelvin himseif contributed. By-examining the interviews with the laureates, we can now detect some underlying ,psychosocial mechanisms that make for the greater visibility of contributions reported by scientists of established reputation. This greater visibility is not merely the result of a halo effect such that their personal prestige nibs off on their separate contributions. Rather, certain aspects of their socialization, their scheme of values, and their social character account in part for the visibility of their work. test. One can examine scribes his socialization in a European laboratory as “my first real contact with first-rate creative minds at the high point of their power. I acquired a certain expansion of taste. It was a matter of taste and attitude and, to a certain extent, real self-confidence. I learned that it was just as difficult to do an unimportant experiment, often more difficult, than an important one.” There is one rough measure of the extent to which the laureates were trained and influenced in particularly creative research environments-the number of laureates each worked under in eariier years. Of 55 American Laureates, 34 worked in some capacity, as young men, under a total of 46 Nobel prize winners (35). But appareatly it is not only the experience of the laureates (and, presumably, other outstanding men of science) in these environments that accounts for their tendency to focus on significant problems and so to affect the communication function of the Matthew effect. Certain aspects of their character also play a part. With few exceptions, these are men of exceptional ego strength. Their self-assurance finds varied expression within the context of science as a social institution. That institution, as we know, includes a norm calling for autonomous and critical judgment about one’s own work and the work of others. With their own tendencies reinforced by such norms, the laureates exhibit a distinct self-confidence (which, at the extreme, can be loosely described as attractive arrogance). They exhibit a great capacity to tolerate frustration in their work, absorbing repeated failutfs - without manifest psychological damage. One laureate alluded to this capacity while taking note of the value of psychological support by colleagues: Rpsar& is a rough game. You may work for months, or even a few years, and seemingly you are getting nowhere. It gets pretty dark at times. Then, all of a sudden, you get a break. Jt’s good to have somcbody around to give a bit of encouragtmeat when it’s needed. Though attentive to the cues provided by the work of others in their field, the Nobelists are self-directed men, moving confidently into new fields of inquiry once they are persuaded that a previous one has been substantially mined. In these activities they display a high degree of venturesome fortitude. They are prepared to tackle important though difficult problems rather than settle for easy and secure ones. Thus, a laureate recalls having been given, early in his career, “a problem about which there was no risk. All I had to do was to analyze [the chemicai composition of certain materials]. You could not fail because the method was well established. But I knew I was going to work on the tinstead and the whole thing would have to be created because nothing was known about it.” He then went on to make one of his prime contribution; in the more risky field of investigation (36). This marked ego strength links up with these scientists’ selection of important problems in at least two ways. Being convinced that they will recognize an important problem when they encounter it, they are willing to bide their time and not settle too soon for a prolonged commitment to a comparatively unimportant one. Their capacity for delayed gratification, coupled with leads to a conviction self-assurance, that an important problem wiil come along in due course and that. when it does, their acquired sense of taste will enable them to recognize it and handle it. As we have seen, this attitude has been reinforced by their early experience in creative environments. There. association with eminent scientists has demonstrated to the talented novice. as didactic teaching never could, that he can set his sights high and still cope with the problem he chooses. Emulation is reinforced by observing successful, though often delayed, outof the the idiom comes. Indeed, laureates reflects this orientation. They like to speak of the big problems and the fundamental ones, the important problems and the beautiful ones. These they distinguish from the pedestrian work in which they engage while waiting for the next big problem to come their way. As a result of all this, their papers are apt to have the kind of scientific significance that makes an impact, and other scientists tend to single out their papers for special attention. The character structure of these ieading scientists may contribute to the communication aspect of the Matthew effect in still another way, which has to do with their mode of presenting their scientific work. Confident in their powers of discriminating judgment-a confidence that has been confirmed by the responses of others to their previous work-they tend, in their exposition. to emphasize and, develop the central ideas and findings and to play down peripheral ones. This server, to highlight the significance of their contribu6 tions, raising them out of the stream of publications by scientists having less socially-validated self-esteem, who more often employ routine exposition. Finally, this character structure and an acquired set of high standards often lead these outstanding scientists to discriminate between work that is worth publishing and that which, in their candid judgment, is best left unpublished though it could easiiy find its way into print. The laureates and other scientists of stature often report scrapping research papers that simply did not measure up to their own demanding standards or to those of their coilegues (37), Seymour Benzcr, for example, tells of how ahe was saved from going “down the biochemical drain”: “Delbriick saved me, -when he wrote to my wife to tell me to stop writing so many papers. And I did stop” (38). And a referee’s incisive report on a manuscript sent to a journal of physics asserts a relevant consequence of a scientist’s faiiure to exercise rigorous judgment in deciding whether to publish or not to publish: “If Cwould write fewer papers, more peopie would read them.” Outstanding scientists tend to develop an immunity to insanabilc scribendi ctacoethes (the itch to publish) ‘(39). Since they prefer their published work to be significant and fruitful rather than merely extensive, their contributions are apt to matter. This in turn reinforces the expectations of their feilw scientists that what these eminent scientists publish (at least during their most productive period) will be worth close attention (40). Once again this makes for operation of the Matthew effect, as scientists focus on the output of men whose outstanding positions in science *have been socially validated by judgments of the average quality of their past work. And the more closely the other scientists attend to this work, the more they are likely to learn from it and the more discriminating their response is apt to be (42). For all these reasons, cognitive material presented by an outstanding scientist may have greater stimuius vaiue than roughly the same kind of material presented by an obscure one-a principle which provides a sociopsychological basis for the communication function of the Matthew effect. This principle represents a special appiication of the self-fulfilling prophecy (42). somewhat as follows: Fermi or Pauling or G, N. Lewis or l Weisskopf see fit to report this in print and so it is apt to be important (since, with , some consistency, they have made important contributions in the past); since it is probably important, it should be read with special care; and the more attention one gives it, the more one is apt to get out of it. This becomes a self-confirming process, making for the greater evocative effect of publications by eminent men of science (until that time, of course, when their image among their fellow scientists is one of men who have seen their best daysan image, incidentally, that corresponds with the self-image of certain laureates who find themselves outpaccd by onrushing generations of new men). Like other self-fulfilling prophecies, this one becomes dysfunctionai under certain conditions. For although eminent scientists may be more likely to make significant contributions, they are obviously not alone in making them. After all, scientists do not begin by king eminent (though the careen of men such as MGssbauer and Watson may sometimes give us that mistaken impression). The history of science abounds in instances of basic papers’ having been written by comparatively unknown scientists. only to be neglected for years. Consider the case of Waterston, whose classic paper on moItcuiar velocity was rejected by the Royal Society as “nothing but nonsense”; or of Mended, who, deeply disappointed by the lack of response to his historic papers on heredity, refUsed to publish the results of his further research: or of Fourier, whose ckmic paper on the propagation of heat had to wait 13 years before being finally published by the French Academy (43). Barber (44) 91as noted how the slight professiorial standing of certain scientists has on occasion led to some of their work, later acknowledged as significant, being refused publication altogether. And, correlatively, an experienc&g brd Rayleigh’s (45) provides an example in which an appraisal of a paper was reversed once its eminent authorship became known. Rayleigh’s name “was either omitted or accidentally detached [from a manuscript], and the Committee [of the British Association for the Advancement of Science] ‘turned it down’ as the work of one of those curious persons called paradoxers. However, when the authorship was discovered, the paper was found to have merits after all.” When the Matthew effect is thus transformed into an idol of authority, it violates the norx!l Of UIliversaliam embodied jn the institution of Science . of knawiand curbs the advancement edge. But next to nothing is known about the frequency with which these practices are adopted by the editors and referees of scientific journals and by other gatekeepers of science, This aspect of the workings of the institution of science remains largely a matter of anecdote and heavily motivated gossip. The Matthew Efbct and Allocation of Scicat& Resoumu One institutional version of the Matthew effect, apart from its role in the reward and communication systems of science, requires at least short review. This is expressed in the principle of cumulative advantage that operates in many systems of social stratification to produce the same result: the rich get richer at a rate that makes the poor become relatively poorer (46). Thus, centers of demonstrated scientific excellence are allocated far larger rts~urccs for investigation than centers which have yet to make their mark (47). In turn, their prestige attracts a disproportionate share of the truly promising graduate students (48). This disparity is found to be especially marked at the extremes (49): six universities (Harvard, Berkeley, Columbia, Princeton, California Institute of Technoiogy, and Chicago) which produced 22 percent of the doctorates in the physical and biological sciences produced fully 69 percent of the Ph.D.‘s who later became Nobel laureates. Moreover, the 12 leading universities manage to identify early, and to retain on their faculties, thae scientists of exceptional talent: they keep 70 percent of the future laureates in comparison with only 28 percent of the other Ph.D.‘s they have trained. And finally, “the top twelve [universities] are much more apt to reckit futurt laureates who received degrees fern other American universities than they are other recipients of the doctorate; half the iaureates who were trained outside the top twelve and who worked in a university moved into the top twelve but only six percent of the sampie of doctoral recipients did SO.” These social processes of social selection that deepen the concentration of top scientific talent create extreme difficulties for any efforts to counteract the institutional consequences of the Matthew principle in order to produce new centers of scientific excellence. SThis account of tbt Ma&cw tiect is another smaII exercise ia the ps~cb!Bociologicai anaiyh of the workings of science as a so&i in&Ution. The initial problem is transformed by -a shift in theepenpectin, As originally identi&d, the Matthew C&U tnrw construed in terms of enhmxamf of the position of already rfnjncnt scientists who are g&n Mrtionate credit in cases *of coiiaixmhm or of independent multiple &WV&U. Its significance was thu8 cur&cd to its implications for the. system of scicsa#, By shiffing the angle of vision, we note other me w of amsquences, this time for t@ mmmunication system of S&XX. The Matthew effect may serve to m the visibility of contribtiom to s&n~~ by scientists of acknowkdgod S~JE&QJ a\d to redUcc! the visibility of colltribotjo83 by authors who arc less well m. We examine the psycbosocirl um& tions and me&misms Und&y&this effect and find a correlation betaracn the redundancy fun&on of mo)tiple discoveries and the focalizing m of eminent men of scicocc-a m which is reinforced by the great vah~ these men place upon finding bsic problems and by their self-assumm. This seif-assUrance, which b +y b herent, partly the rutrlt of expcrimocs and associations in -tie &a&& eIIyironments, and partly a &t of later social validation of their gmihun. encourages them to 8mmh a l+SQ but important problems and to hi+ light the results of their inquiry. A ma-1 version of the Me principle is apparently invohred in those processes of sociai selection that currently lead to the concentration of scientific resources and talent (SO). 1. 2. 3. Tbeambodaofobtrdntn~~~ of tkk subH. A. Zuchmmn, ufrivenity, 1965. A-. -1. Rev: .a 633 intewiewr and the - are deadbed r)lcdr, calumM8 R. K. w 09s7). B. 0. G-9 PmjemionaI cali& 1964h Oe chrrran in m--wkP SC- TIbb D. Crlaa, Am-. ‘soclol. Rev. w. 0. 3% 699 (196s’). H8#%treln, Thr Sclrrrttpc co-may (B&c Boo& Ncr Yo*’ l%r), chap. L N. W. Storer. l%e Soefaf System ot S(He Rimbarr and Wimtaa, New York, 1966). p. 106: se8 rl- ibid, pp. -26, 103406. theai& c&albi8 U& Ey %i!Y-t8. S. kok ;rd J. R C&e, Amer. Sodol. Rn. 3% 377 v9m. 9. I bare 8doptcd this term tat the m phenomenon from the tnonogr8p h on .tk F-cb Arrhmr by Arsene Hw, H-8 du 41-9 FawuU de l’A_ F-e iPl?iSs, 1886). 10, This partial list of men who b8va &lb8 7. . . votk ‘ram 11. of “prize-winning calibre” it derived and His Prittr (Ellevier, London. 1962). an official publication ,f the Nokl prize-grantmg academy and nstitutc, Nobclstlftelscn. indebted to Marshall Childr for sugpting that this term, inttoduccd into ccocomics by James S. Ducscnbcrry in quite ~nothet connection, could aptly refer to this pattern in the cumulation of prestige for suc:cuive accomplishments. For its USC in cco9Ofl¶iCS, see Duesenbcrry, Income, Savings, and of Consumer Behavior (Harrard Univ. Press, Cambridge, Mass., 1949). sp. 11416. Ihi, process of a socfufly rrintorced rise In ,rrpirat ions. as distinct from Durkhcim’s =owpt of the “insatiability of wanta.” is :xamined by R. K. Mcrton in Anomie und Devkrnr Behavior, M. Cllnard. Ed. (Fret Pms, New York. 1964). pp. 213-242. t. Parsons, The Social System (Free Press, New York, 19511, p. 127. Max Webcr touches upon the convertibility of position in distinct systems of stratification In his classic essay ‘“ClStatus, Party” [Fmm Max We&w: Essays in Socfofogy, H; H. Gcrth and C. Wright Mills. Eds. (Oxford Univ. Press, New York, 1916)). Ihe laureates are not rlone in notins thai Nobel: The I am 26. rhc Theory 12. 13; 14. 13. i prominent scientists tend to get the lion’s rhulb of credit: similar observ8tions were made by less eminent scientists in the samo pie studied by Hagstrom (set 3, pp. 24, 25). cw can be infcrrcd from the pro16. A third tocols of interviews, in which the view is stated that, had a paper wtlttcn by a com- dlicatcd that they were familiar with the work bf a designated list of 120 physicists. The sltudy includes checks on Ihe validity of hcse visibility scores. >. J. dtSolla Price has noted that “all crude I neasurcs, however arrived at. show 10 a approximation incrcascs f int that sclcncc f :xponentially, at a compound interest of 1rbout 7 per cent per annum, thus doubling 10-15 years, growing by a factor i n size every and by somcthmg c,f 10 every lhalf~cntury, 1,ike a factor of a million in the 300 years which separate us from the seventccnthscn,ury invention of the scientific paper when :he process began” [Nature 206, 233 (1965). pp. 233-238). B. Glass. Science 121, 583 (1955). k. for example. H. Men&. In Communicordon: Conceprr and Perspecwes. L. Thaycr, (Spartan Books. Washington. D.C.. Amer. Psychoforrfsr :&) pp 279-2950 21. ob9 il966). See also ‘S. Herncr (Science 128. 9 (1958)). who notes that “one of the prcrtest uimulams to the use of information is familiarity with its source”: S. Hcmcr. fnd. Eng. Chem. 46, 228 ( 1954). Future rnvcstigations will rcquitc more detaikd data on the actual proccsscs of selecting scientific papers for varying kinds of “rcrding” and “skimming.” But the data now available arc at least suggestive. C Man 27. 28. 1 . ,- 29. 30. On the concept of functional redundancy as distinct from “wa~cful duplication” in scicntific rcscarch. see R. K. Merton, Europearr 31. parat:vcly unknown scientist been presented instead by an eminent scientist, it would have had a better chance of being published an3 of receiving respectful attention. Sy* temrtic *information about such casts is too 18. 19. 20. 21. + not an efficient way of doing things. .I think that most of the time. in respect to tescatch, duplication of effort is a good thing. 32 an, politics, the practicing profcssionr, or rcliaion for the recognition of talent, whatever its socirl origins? H. Zuckennan, “Patterns of namc~rdtrjnq among authors of scientific papers: a study of -aI symbolism and its ambiguity,” paper rtad .&fore the American Sociological ~ssocition, Augmt 1967. Dr. Zuckcrman will not demean herrtlf to give thcsc practices their prcdcstincd tag, but I shall: plainly, these arc instanccx of Nobelesse oblllre. 8. Berekaon, Graduate Educatton IU lfnlted States (McGraw-Hill, New York, 1960). p. 55. D. J. dcSolia Price, tftrlr Science. f3& SC& tncy (Columbia Univ. Press, New York, 1963). This nattern of social functions and individdysfunctions is at variance with the vigor- 33. 34. Later the and 33. 36. requirements of the social system are in suffictcnt accord to be functional for both R. L. Ackoff and the social and M. H. system. Halbert. An Over- atlonr Research Study of the Sclrnrlfic AC~lrlly of Chembrt (Cue institute of TechaoAogy Operations Research Group, Clevb land 2% 1958). on ~s~chofory Project 37. more than 1300 American physicists who in- this discussion. I consider the dys- questioning of mere authority. Here, other institutional spheres. the prob= lem is one of accounting for patterns of cotncidencc and discrepancy bctwccn social norms and actual behavior. H. Zuckcrman, A nrrr. Aociol. Rev. 32, 391 In mm. Germane resuirr in expcrimcntoi psychology show that preferences for riskier work but more significant outcomes arc related both to high motivation for achievement and to a capacity for accepting delay in gratification. See. for example, W. Mischel, J. Abnormuf Sot. Psychol. 62, 543 ( 196 I). this extent. they engage in the kind of bebavior ascribed to physicists of the “perfectionist ‘* who have been statlstically identified by the Coles (8 tho.sc who publish less than they might but whose publicrtions nevertheless have a considerable impact on the field. as indicated by citations. It is significant that this type of physicist was accorded more recognition in the form of awards for scientific work than any other types (including the “prolific” and the “mass producer” types ) . S. Bcnzcr, in PhaRe and rhc OriRfns of Molecular Biology, 1. Cairns. G. S. Stent. J. D. Watson, Eds. (Cold Spring Harbor Labo- 38. Biology, Cold Spring p. 165. This Festschri/f shows that Dclbriick is one of Icicntists who generally exercise this kind of dcmandirw judgment on the publication of their own work and that of their associates. 39. For some observations on the prophylaxis for this disease. see R. K. Menon, On the Shoulders of Giants Harcourt. Brace and World, New York. 1967). pp. g3-_85. 40. has been noted (G. Williams, Virus Hwrrem (Knopf, NW York. 1959)J that the early conhdtncc of SCientlStS in the mcas1cs vatcinc was a “paradoxical feedback of (Enden’s) own scientific insistence, not on bclicvinp, but on doubting. His fellow s&ntists trust John Enden not to go overboard on anything.” 41. This remains a moot conclusion. Hovland’* experiments with laymen have shown that the scanBe communicauons conudcrcu are less biased when attributed to sources of high rather than low credibility [C. I. Hovland, Anrer. Pwcholonfs~ 14. Y (1959)). In an earlier study. Hovland and his associates found thrrt. in the cast of fucwol communica[ions, cherc is “equally good kaminv of what was said regardless of the credibility of the commumcator” [C. 1. Hovtrnd. 1. 1. Janis, H. H. Kcllcy, Communkahn and Ptrsuusdon (Yale Univ. Press, New Haven. Conn.. 1953 271)). 42. For an analysis of the sclf4ulfWlnq prophecy. see R. K, Merton. Anrkch Rev. 1918. So5% (Summer 1948). rcpfintcd in -. cial Tlrwrr urrd Swiul Strtwrrrre ( Press, New York. 19371, pp. 421-436. 43. Set W. K. hlcrton who cttcs the following: R. H. Murray. Science ond Sclenrirts in the Ninereenrh Cenrtrr.v (Sheldon. London, 1923). pp. .146w.t48: D. 1. Watmn. Scientists urt Hwnutt Watts. London. 1938 ), pp. 58. 80: R. J. Strutt (Boron Rayleigh). John Williurrr Slrtrrr. Third Bitron Hcrdrigk ( Arnald. London. 1924). pp. 169-171. 134. 596 f I961 ). rcprintcd 44. B. Barber. Scirncv and W. Hirsch. Ed%.. T/rr Social+ in g.v 01 Scitncr (Free Press. New York. 1962). pp. 539-556. hy Barber (44) from R. J. Strutt. 45. Quoted John Wifliunt Slrrrtl. Third Buror, Rcrylelrrh Arnold. Londotl. 1924). 46. Dcrck Price pcrccivcd this implication of the Matthew principle (Ndrrrt 206, 233 (196511. 47. D. S. (irecnbcrg. Satrrr4u.v Rev. (4 Novembcr 19671, p. 62; R. B. Bar&r. In Tht Pollrics oj Rrsturch Public Affairs Press. Washington, D.C., 1966). p. 63. notcr that “in 1962, 38 per cent of all federal support went to just ten institutions and 59 per cent to just H. Orlans, Tht E#rcrs of Ftd25:* See altral Pr~~rumx ON Hkhtr Education ( Brookings Institution. Washington, D.C., 1962). Cart&r tcports that. in Allan M. 48. Thus. 19-3, 86 percent of (regular) National Science Foundatron Fellows and 82 percent of Woodrow Wilson Fellows free to choose their place of study elected to study in one or another of the 23 leading universities (as rated in terms of the quality of their graduate faculties) (A. M. Carttcr. An Assessin Graduate Educarfon rnemt of Qt1aftiy (American Council on Education. Washington, D.C., 19661. p. 1081. information on 49. For this and other detailed the career patterns of lrrureatcs, see H. Zuck- those Clearly ( It 1. p. Fret (11, ( ( ( ermrn (1, 32). to come SO. Chancing this paper, Richard To type. Sctenrific lntormarlon Exchange In (American Psychological Association, Washington. D.C., 1963 ), vol. 1. S. Cole and 1. R. Cole, “Vlsibillty and the structural bases of observability in science,” paper prcscntcd bcforc the American Sociolo@c8l Association, Auaust 1967. In the Colcs’g study (24). the term rgfsfbfllty scores refers to percentages in a sample of In functions arsoccatcd with these functions of great men of science. Idols of the cave often continue to wield great influcncc even though the norms of science call for the sysas tioru individuals 470 (l%l). tematic untutored optimism unforgctt;bly by Adam Smith. who speaks of it 24. ( 1963 ). social stratificrtion involving differentials in lifechances, thcrc remains the qucstlon of the extent to which talent among individuals in the deprived strata has gone unrccogni;Pcd and undcvclopcd, and its fruits lost to tiety. MO= spccificaliy, we have yet 10 d-vet whether or not the channels of mobility are equally open to talent in vrriow lnstftution8l rc8lms. Dots contemporary science rfford grerter or less opportunity than expressed “8 barrnomous order of nature, under divine gtince, which promoter the welfare of man through the opcratlon of hire individual propa&ties.” If only were that simple. One of the prime problems for sociological theoty is that of identifying the special condiunder which men’s propcnrities and the 23. 237 I think that if there ate diflcrcnr groups in diffennt Iaboratortcs working on the same thing, their approach is sufficiently different (lo incrcasc the probability of a successful outcome). On the whole. this is il good thing and not something that should be avoided for the sake of efficiency.” So far as I know. no investigation has yet been carried out on pnciscly this question. At best sug;ertive is the pcriphcrnl evidence that papers of Nobel laurcatcs-to-bc were cited 30 times more often in the 5 years before their authors were awarded the prize than were the papers of the average author appearing in the Citation index dunng the same period. See i. H. Shcr and E. “New t-Is for improving the effecGuAcid, paper prescntcd at the tivencss of research.” 2nd Conference on Rcscarch Program Effectivencss. Washington. D.C.. July 1965: H. Zuckcrman, Scf. AtpIer. 217. 25 (1967). R. K. Merton, Proc. Amer. Phil. Sot. 10% ous 22, 4. the laureates questioned the ready redundancy of assumption that rescrrch effort ncccssrrily means “wasteful duplication”: “One often hears, especially when large amounts of money are involved. that duplication of effort should bc avoided. that this is spans for detailed study. compensatory pattern can only obtain, 17. This of course, among scicntlsts who ultimarcly achieve recognition with its associated further rewards. But, as with all systems of * 1. Socfol. One of r;ltory of Quantitative IHarbor, N.Y., 1966). 1 as upon the manuscript of 1. Russ& a mokcular biologist of more than passing aCuUaintanCc. has informed me that a well-known textbook in organic chemistry (L. F. Ficser and M. lo Oruanic Chemistry F jeser. In runfucrion (Heath. Boston. 1957 )] refers lo the “empirical rule due to Saytzeff ( 1873) that in dehydralion of ;Ilcohols. hydrogen is eliminated prefcrcntially from the adjacent carbon atom that is poorer in hydrogen.” What makes the rule germane to this discussion is the ac“MA~Ew, XXV, footnote: companying but from him that bath not shall 29, ‘. bc taken away even that which hc hath.’ ” Evjdcntly the Matthew effect transcends rhe world of human behavior and s&al process. Earlier versions of this discussion were prcscntcd before NIH and AAAS. The work summarized was suppotted in part by NSF grant GS-960 to Columbia University’s pro, gram in rhe sociology of science. This 8rtiCle No. A-493 of the Bureau of is publication Social Research, Columbia UnivcnitY . . 51. Applied g